Home / 90,400.38-124,753.41-50,114.76

Finding the Fourth Proportional to 90,400.38, 124,753.41 and 50,114.76

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Solution

The fourth proportional to 90,400.38, 124,753.41 and 50,114.76 is: 69,158.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,400.38 : 124,753.41 = 50,114.76 : x
  2. Step 2: Convert to fraction form
    90,400.38/124,753.41 = 50,114.76/x
  3. Step 3: Cross multiply
    90,400.38x = 124,753.41 × 50,114.76
  4. Step 4: Simplify right side
    90,400.38x = 6,251,987,201.33
  5. Step 5: Solve for x
    x = 6,251,987,201.33/90,400.38
  6. Step 6: Final answer
    x = 69,158.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.